
raw bones are fine and chicken wings for example are a tasty treat that your dog with probably love :)
NEVER EVER EVER FEED COOKED BONES (for yourself and other internet land readers :))
for recreation our lot have always loved a big bit of cow leg from the butchers and it keeps them happy and quiet for hours :) (bit messy though)
bones can be dangerous, its a pointy thing after all, but dogs are designed to deal with them as part of their diet. you will hear horror stories but they are rare and often a result of cooked bones.
bones also have tonnes of benefits other than fun for your dog. they are terrific for keeping teeth clean and work all manner of muscles in the face, neck, chest and legs while being eaten.
hth :)